“I try to have a good sense of humor. You can’t be completely serious all of the time in this business or you’d go crazy. It’s not one of those businesses you think of until you need it.”

Riley started CADSC Inc. in 1998 after working 27 years as a science teacher. He said crime scene cleanup accounts for about 6 percent of his business, while about half is what he described as “filthy living or pooh related.”